Design and performance study on a large-scale hybrid CPV/T system based on unsteady-state thermal model
作者： Zexin Wang , Jinjia Wei , Gaoming Zhang , Huling Xie , Muhammad Khalid
DOI: 10.1016/J.SOLENER.2018.11.043
关键词: Nuclear engineering 、 Photoelectric effect 、 Solar energy 、 Materials science 、 Thermal efficiency 、 Work (thermodynamics) 、 Radiation 、 Nonimaging optics 、 Thermal 、 Thermal energy
摘要: Abstract A hybrid CPV/T unit designed in this work concentrates solar radiation by a compound parabolic concentrator (CPC) and converts energy into electrical thermal PV/T module. The CPC eliminating multiple reflections of is defined as the ‘EMR-CPC’ our previous work, which improves photoelectric conversion efficiencies. Two similar units were tested with two-axis tracking device south-north single-axis respectively, average efficiencies 13% 12%. large-scale system sunlight collecting area 810 m2 was built to explore practical application unit. whole-day efficiency total output 55% 1,730,039 kJ respectively on April 14, 2017. steady-state unsteady-state models established loss analyzed. calculated comprehensive model 55.3% 55.0% close measurement 55.8%. However, failed accurately predict variation system. In comparison, predicts instantaneous varying meteorological conditions its daily heat output.
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